[Karl Bebout]

John, I've got the BGF 325/50/15 Drag TAs on my car and find that they work better if I lower the pressure down to 16-18#s and heat them up before trying real hard. My car is just under 2700 #s with my large body in it and the engine dyno'd out at 552 HP @ 5400 RPM and 596#s @ 3400. These are flywheel numbers and I'm sure I'd probably lose at least 12-15% by the time it gets to the rear wheels. Still, pretty perky, and real nice for the street. I can't hit full throttle until I roll out a ways and second gear usually stays fairly straight. Definitely some gas pedal feathering is used.
I'm running a Hughes TH 400 with their 10", 3200 RPM stall convertor. The rear is a 9" Ford live axle, 3.50, Powertrax, four link, coil over set up, with the pinion angle about 2* negative. The additional torque multiplication from the smaller convertor only adds to the joy and although the car is not strictly set up for either the track or the strip, it sure makes me smile on those little trips to the grocery store. The car won't pass tech at the strip so I've never been able to make any passes. ( no roll cage, 5 pt harness, trans blanket, drive shaft loops, etc) Probably just as well. I know I'd just have to do whatever it took if the car didn't get at least well into the 11's. I'm blissful in my ignorance.
Good luck with your new tires.